The Grey Ghost Precision® Slide Completion Kit for Sig P320 Pistols comes with almost everything you need to complete your Sig Sauer® P320's slide assembly. This kit is compatible with 9mm Grey Ghost Precision Sig P320 full size and compact slides as well as OEM Sig P320 full size, compact, and carry slides. This kit includes 1 P320 striker assembly, 1 extractor, 1 extractor pin, 1 extractor spring, 1 extractor pin plus, and 1 back plate.